Nonmetallic MineralsNonmetallic Minerals

Metal MiningMetal Mining

Coal MiningCoal Mining

Other MinesOther Mines

*1987 Standard Industrial Classification (SIC)

NonmetallicNonmetallicMinerals Minerals

(SIC 1400)(SIC 1400)59%59%

Metal MiningMetal Mining(SIC 1000)(SIC 1000)

38%38%

Coal Mining Coal Mining (SIC 1200)(SIC 1200)

1%1%

Mines of Mines of Unknown TypeUnknown Type

2%2%

No. of Cases

Type of Employer at Time of Silica Exposure Occupation

Age Silicosis

Identified

Year Silicosis

Identified

Year First Exposed to Silica Dust

48 

Nonmetallic minerals (sand, gravel, stone)

 

Laborer 14Heavy Equip. 8Dryer Oper. 5Mgr/Oper. 5Machinist 3Miner 3Bag Handler 2Truck Driver 2Screen Oper. 2Mining Engin. 1Shipping 1Unknown 1

43-86 1979-2006 1925-1978

No. of Cases

Type of Employer at Time of Silica Exposure Occupation

Age Silicosis

Identified

Year Silicosis

Identified

Year First Exposed to Silica Dust

31 

Metal mining (iron, silver, zinc)

Miner 16Driller 5Mechanic 3Laborer 3Explosives 1Electrician 1Unknown 1

54-88 1979-2009 1918-1956

2  Mines of unknown type Mining engineer 2 45-80 1982-2006 Unknown

1 

Coal mining Explosives/tunnel worker 1

80 2006 1958

No. of Cases

Type of Employer at Time of Silica Exposure Occupation

Age Silicosis

IdentifiedYear Silicosis

Identified

Year First Exposed to Silica Dust

25  

Construction sand and gravel

Laborer 9Machine/Equip. operators 5Drier Operator 3Bag Handler 2Machinist 2Truck Driver 1Foreman 1Miner 1Unknown 1

52-86 1979-2006 1925-1969

NONMETALLIC MINERALSNONMETALLIC MINERALS►►Construction Sand and GravelConstruction Sand and Gravel

No. of

Cases

Type of Employer at Time of Silica Exposure Occupation

Age Silicosis

Identified

Year Silicosis

Identified

Year First Exposed to Silica Dust

9 Industrial sand 

Machine/Equipment operators 3Sand drier 2Laborer 1Truck Driver 1Mechanic 1Sweeper 1

58-83 1981-2004 1938-1969

NONMETALLIC MINERALS NONMETALLIC MINERALS ►►Industrial SandIndustrial Sand

No. of

Cases

Type of Employer at Time of Silica Exposure Occupation

Age Silicosis

Identified

Year Silicosis

Identified

Year First Exposed to Silica Dust

6  

Crushed and broken stone (all types)

Quarry worker 2Screener 1Plant manager 1 Stone Crusher Operator 1Mining engineer 1

60-84 1986-2002 1942-1963

4 Miscellaneous nonmetallic minerals (graphite)

Mill operators 2Screener 1Shipping 1

53-60 1995-1997 1958-1977

3 Dimension stone Quarry worker 1Miner 1Unknown 1

43-76 1988-1997 1936-1944

2 Mines of unknown type Mining engineer 2 45-80 1982-2006 Unknown

1 Kaolin and ball clay Sample manager 1 75 2005 1968

NONMETALLIC MINERALSNONMETALLIC MINERALS►►Stone, graphite, clayStone, graphite, clay

No. of Cases

Type of Employer at Time of Silica Exposure Occupation

Age Silicosis Identified

Year Silicosis Identified

Year First Exposed to Silica Dust

26 Iron ore mines Miners 11Trammers 1Drillers 5Electricians 1Laborers 1Explosives 1Mechanics 2Loader 1Unknown 3

54-85 1979-2009 1919-1956

3 Zinc ore mines Miners 81-88 1981-2004 1918-1935

1 Silver mine Miner 85 2000 1940

1Metal ore mine (not elsewhere classified)

Mining engineer 80 1982 Unknown

METAL MININGMETAL MINING